#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <math.h>

int main()
{
	int Weight = 0;
	float Height = 0.0, BMI = 0.0;
	while (scanf("%d %f", &Weight, &Height) != EOF)
	{
		Height /= 100;
		BMI = Weight / pow(Height, 2);
		if (BMI < 18.5)
			printf("Underweight\n");
		else if (BMI >= 18.5 && BMI <= 23.9)
			printf("Normal\n");
		else if (BMI > 23.9 && BMI <= 27.9)
			printf("Overweight\n");
		else
			printf("Obese\n");
	}
	return 0;
}